Cold storage room, as an indispensable part of modern cold chain logistics, its composition and operation principle are crucial to ensure the safety and quality of food, medicine and other items.
1. Components of cold storage room
Cold storage room is mainly composed of the following parts: insulation panles, refrigeration system, electrical control system, auxiliary facilities, etc.
1. Cold room insulation panels
The sandwitch panels are the main structure of the cold storage, and its design and construction quality are directly related to the insulation effect and operating cost of the cold storage room. At present, the common insulation materials on the market are polyurethane, polystyrene, etc. They have good insulation performance and low thermal conductivity, which can meet the use requirements under different temperature and humidity conditions.
2. Refrigeration system
The refrigeration system is the core part of the cold storage room, which is responsible for discharging the heat in the room and maintaining the stability of the temperature in the storage. The refrigeration system is mainly composed of compressors, condensers, evaporators, throttling devices and other components. Among them, the compressor is the “heart” of the refrigeration system. It compresses the refrigerant and changes it from a low temperature and low pressure state to a high temperature and high pressure state, providing power for the refrigeration cycle. The condenser is responsible for cooling the high-temperature and high-pressure refrigerant discharged from the compressor, turning it into liquid and releasing heat at the same time. The evaporator uses the latent heat of vaporization of liquid refrigerant at low pressure to absorb the heat in the storage to achieve a cooling effect. The throttling device ensures the efficient and stable operation of the refrigeration system by controlling the flow and pressure of the refrigerant.
3. Electrical control system
The electrical control system is the “brain” of the cold storage room. It is responsible for controlling the operating status of the cold storage room and ensuring the safety and energy saving of the cold storage. The electrical control system is usually composed of components such as temperature controller, pressure controller, motor protector, and power distributor. Among them, the temperature controller is the core of the electrical control system. It automatically adjusts the operating status of the refrigeration system according to the changes in the temperature in the storage to ensure the stability of the temperature in the room. At the same time, the electrical control system also has fault diagnosis and alarm functions, which can detect and handle equipment failures in time to ensure the safe operation of the cold storage room.
4. Auxiliary facilities
They provide necessary support and guarantee for the normal operation of the cold storage. Auxiliary facilities include lighting systems, ventilation systems, drainage systems, fire protection facilities, etc. Among them, the lighting system provides the necessary lighting conditions for the cold storage, which is convenient for personnel to operate and maintain; the ventilation system ensures the air circulation in the cold storage to prevent the items from being damaged due to excessive humidity in the storage; the drainage system is responsible for discharging the accumulated water in the storage to prevent the accumulated water from damaging the equipment; the fire prevention facilities improve the fire prevention ability of the cold storage room and ensure the safety of the cold storage room.
Maintenance of the cold storage room
In order to ensure the normal operation of the cold storage room and extend its service life, the cold storage room needs to be regularly maintained.
1. Regularly check the operating status of the refrigeration system to ensure the normal operation of the equipment.
2. Clean the condenser and evaporator regularly to prevent dust and dirt from affecting the heat dissipation effect of the equipment.
3. Check the operating status of the electrical control system regularly to ensure that the control system works normally.
4. Check the use of auxiliary facilities regularly, such as lighting systems, ventilation systems, etc., to ensure their normal operation.
5. Defrost the cold storage regularly to prevent the frost layer from being too thick and affecting the refrigeration effect.